import json

j = json.loads("""{
	"data": [
		{
			"diff": 1.6,
			"env": 23.0
		},
		{
			"diff": 1.7,
			"env": 24.0
		},
		{
			"diff": 1.7,
			"env": 23.0
		},
		{
			"diff": 1.8,
			"env": 23.0
		},
		{
			"diff": 1.8,
			"env": 23.0
		},
		{
			"diff": 1.8,
			"env": 23.0
		},
		{
			"diff": 1.9,
			"env": 23.0
		},
		{
			"diff": 1.9,
			"env": 24.0
		},
		{
			"diff": 1.9,
			"env": 23.0
		},
		{
			"diff": 1.9,
			"env": 24.0
		},
		{
			"diff": 1.9,
			"env": 24.0
		},
		{
			"diff": 2.0,
			"env": 23.0
		},
		{
			"diff": 2.0,
			"env": 23.0
		},
		{
			"diff": 2.0,
			"env": 23.0
		},
		{
			"diff": 2.0,
			"env": 23.0
		},
		{
			"diff": 2.0,
			"env": 23.0
		},
		{
			"diff": 2.0,
			"env": 23.0
		},
		{
			"diff": 2.0,
			"env": 24.0
		},
		{
			"diff": 2.0,
			"env": 23.0
		},
		{
			"diff": 2.0,
			"env": 24.0
		},
		{
			"diff": 2.0,
			"env": 24.0
		},
		{
			"diff": 2.0,
			"env": 24.0
		},
		{
			"diff": 2.1,
			"env": 23.0
		},
		{
			"diff": 2.1,
			"env": 24.0
		},
		{
			"diff": 2.1,
			"env": 23.0
		},
		{
			"diff": 2.1,
			"env": 23.0
		},
		{
			"diff": 2.1,
			"env": 23.0
		},
		{
			"diff": 2.1,
			"env": 24.0
		},
		{
			"diff": 2.1,
			"env": 24.0
		},
		{
			"diff": 2.1,
			"env": 23.0
		},
		{
			"diff": 2.2,
			"env": 23.0
		},
		{
			"diff": 2.2,
			"env": 23.0
		},
		{
			"diff": 2.2,
			"env": 24.0
		},
		{
			"diff": 2.2,
			"env": 23.0
		},
		{
			"diff": 2.2,
			"env": 24.0
		},
		{
			"diff": 2.2,
			"env": 24.0
		},
		{
			"diff": 2.2,
			"env": 23.0
		},
		{
			"diff": 2.2,
			"env": 24.0
		},
		{
			"diff": 2.3,
			"env": 24.0
		},
		{
			"diff": 2.3,
			"env": 23.0
		},
		{
			"diff": 2.3,
			"env": 24.0
		},
		{
			"diff": 2.3,
			"env": 24.0
		},
		{
			"diff": 2.3,
			"env": 24.0
		},
		{
			"diff": 2.4,
			"env": 23.0
		},
		{
			"diff": 2.4,
			"env": 23.0
		},
		{
			"diff": 2.4,
			"env": 24.0
		},
		{
			"diff": 2.4,
			"env": 23.0
		},
		{
			"diff": 2.4,
			"env": 23.0
		},
		{
			"diff": 2.4,
			"env": 24.0
		},
		{
			"diff": 2.4,
			"env": 24.0
		},
		{
			"diff": 2.5,
			"env": 23.0
		},
		{
			"diff": 2.5,
			"env": 23.0
		},
		{
			"diff": 2.5,
			"env": 23.0
		},
		{
			"diff": 2.6,
			"env": 24.0
		},
		{
			"diff": 2.6,
			"env": 24.0
		},
		{
			"diff": 2.6,
			"env": 23.0
		},
		{
			"diff": 2.7,
			"env": 23.0
		},
		{
			"diff": 2.7,
			"env": 23.0
		},
		{
			"diff": 2.7,
			"env": 23.0
		},
		{
			"diff": 2.7,
			"env": 23.0
		},
		{
			"diff": 2.7,
			"env": 24.0
		},
		{
			"diff": 2.7,
			"env": 23.0
		},
		{
			"diff": 2.7,
			"env": 24.0
		},
		{
			"diff": 2.8,
			"env": 24.0
		}
	]
}""")
sum = 0
for one in j['data']:
    print(one)
    diff = one['diff']
    sum += diff
print(sum)
